<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>vue</title>

</head>

<body>
    <<script src="https://cdn.jsdelivr.net/npm/vue@2.6.12"></script>
    <div id="app">
        
    </div>

    <script>
        var app = new Vue({
            el: "#app",
            data: 
               "hello,world"
            
        })
    </script>
</body>

</html>